public class cj
{
  public static void main(String args[])
  {
    double  score;
    String [] score1 = new String[score.length];
    for(int i=0;i<score.length;i++)
    {
      if(score[i]>=90)
      {
        score1[i] = "A";
        
      }
      else if(score[i]>80&&score[i]<=89)
      {
        score1[i] = "B";
        
      }
      else if(score[i]>70&&score[i]<=79)
      {
        score1[i] = "C";
        
      }
      else if(score[i]>60&&score[i]<=69)
      {
        score1[i] = "D";
        
      }
      else
      {
        score1[i] = "E";
        
      }
      
    }
    for(int i=0;i<score1.length;i++)
    {
      System.out.print(score1[i]+",");
      
    }
    
  }
}
